Base | Representation |
---|---|
bin | 11000100110111111… |
… | …10101001010110001 |
3 | 1021002202201210221110 |
4 | 30103133311022301 |
5 | 204024233410413 |
6 | 10023003143533 |
7 | 645256155006 |
oct | 142337651261 |
9 | 37082653843 |
10 | 13212013233 |
11 | 566a923101 |
12 | 2688814ba9 |
13 | 13272a4013 |
14 | 8d49978ad |
15 | 524d808c3 |
hex | 3137f52b1 |
13212013233 has 16 divisors (see below), whose sum is σ = 18655742016. Its totient is φ = 8288340480.
The previous prime is 13212013207. The next prime is 13212013237. The reversal of 13212013233 is 33231021231.
It is not a de Polignac number, because 13212013233 - 25 = 13212013201 is a prime.
It is a super-2 number, since 2×132120132332 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13212013237) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291010 + ... + 333332.
It is an arithmetic number, because the mean of its divisors is an integer number (1165983876).
Almost surely, 213212013233 is an apocalyptic number.
It is an amenable number.
13212013233 is a deficient number, since it is larger than the sum of its proper divisors (5443728783).
13212013233 is a wasteful number, since it uses less digits than its factorization.
13212013233 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48464.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 13212013233 its reverse (33231021231), we get a palindrome (46443034464).
The spelling of 13212013233 in words is "thirteen billion, two hundred twelve million, thirteen thousand, two hundred thirty-three".
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